TY  - RPRT
TI  - Upper limits for frequency up-conversion in the nonlinear photon accelerator.
AU  - VA Mironov
AU  - AM Sergeev
AU  - EV Vanin
AU  - G Brodin
AU  - J Lundberg
PY  - 1992
DO  - 10.1103/physreva.46.r6178
UR  - https://pubmed.ncbi.nlm.nih.gov/9908007/
ID  - 9908007
ER  -